Sliding-door structure



May I9, 1925. 1,538,358

' J. scHUL'rz SLIDING DOOR STRUCTURE Filed March 2. 1925 2 Sheets-Sheet 1 May 19, 1925.

. J. SCHUL-'rz sLIDING DooR STRUCTURE Filed March 2. 1925 2 Sheets-Sheet 2 MWI? Hinwil f citizen of the United States, resident ofthe I ful Improvement in Sliding-Door Struc-v tures, of which lthe following is a specifica- To all whom t nag/concern:

Patented May 19, 1925.

UNITED fSTATES PATENT OFFICE.

' :rosEPii scHUL'rz, or CLEVELAND, oHro.

.y -SLIDING-DOOR STRUCTURE.

` i Application led March 2*, 1925. f Serial No. 12,527.

Beit known that l, JOSEPH SCHULTFZ, a

city of Cleveland, county of Cuyahoga, and State kof Ohio, have. invented new and usetion, 'thel principle of the invention being ,herein explained andthe best mode in which I have contemplated applying that principle, sov as tovdistinguishit from 'other inventionf i v v My invention ielates to sliding-doors for closing the door-ways of elevator-shafts, its

object being to provide such' n closure by means of a door or doors suspended in such doonway and at the same time provide f means for supporting the lower ends of the doorsk against swinging in a direction trans- A verse with vrespect to the sliding movement thereof, without the use of grooves formed inthe rdoor-sills which have heretofore been used in connection* with pins lfixed to the lower door end or ends andv engaging said grooves for that purpose, which grooves occasionk frequent annoyance and rtrouble by becoming `clogged with refuse, sweepings, etc., as is well known to those skilled inthe v art.

' The said invention consists of means hereinafter `fully described and particularly pointed out in the claims.

- The annexed drawings and the following i description set forth in detail certain means j planek indicated byline II-II yin Fig. 1,

yembodying iny invention,y the means, however, constituting but one of the various mechanical forms .in which the prin ciple of the invention, may ,be'employed In said annexed drawings: Figure 1 represents a front elevation of anv elevator-shaft door-way provided with doors yconstructed in accordance with my inven* tion. f

Fig. 2 represents a section taken upon the showing the door-way closed, and also a `fifagiiientarysection kof the elevator. Fig. 3 represents a section similar to that of Fig. 2, showing the door-way open.

Fig. 4 representsva section similar to that of Figs.-.,2 and 3, but showing a modified foi-inv of vmy invention. e

Fig. 5 represents a rear elevation of Va fragmentary part of such door-way and doors of the form shown iny Fic. 1.

Fig. 6 represents, upon an enlarged scale,

disclosed vvand back into the recess 9, Fig. 6.

e a fragmentary part of the structure, and

. any suitablemanner and closing one end of the door-way (the right-hand in this particular described structure), a sliding-door 6 and a sliding-door 7. Doors 6 and 7 are suspendedfroin the top member 4 in the usual manner, as by suitable rollers running on suitable tracks (not shown) and as it well known. All three of these described closure members are onf-set from each other in a direction `transverse with respect to the -di rection lof sliding, as shown, so` that they may pass each other, as is also customary and well known in this type of door.

Beneath the sill-plate 1 and communicating with the elevator shaft 8 is a horizontal recess9 formed in the front wall 10 of the said shaft, Figs. 5 and 6. Fixed in any suitable manner, as by screwsv 11-11, to the bottom'of'said sill and projecting downwardly into the said recess 9, which mayy conveniently be of T form as shown. This bar runs parallel with the recess.

lThe right-hand end ofdoor 6l is provided with a bracket 13,y fixedly secured to its bottom portion. This bracket extends horizontally forward to, then into said shaft, The lower extremity of the bracket is provided with a vertical plate 14 secured to the main portion 15 of the bracket by means of a bolt 16 and spaced therefrom by a separator 17;` Vertical wear lplates 18-18'are suitably secured to the insides respectively of parts 14` and 15 by suitable means, such as screws 19, and forma groove 20 into which Y the bar 12 (in this case the web of the T- bar) extends, Fig. 6. The width of the groove is made sufficient to allow for sliding engagement of the bracket withvthe bar, and yet permit a minimum of relative movement thereof in a direction transverse with respect to the direction of sliding, as will be understood.

It will therefore be noted that the lower 'end of thedoor 6 is supported so as to be prevented from swinging in such described transverse direction.

Similarly, the left-hand of door 7 is provided with a bracket 13 whose lower-end is of the same construction above described, and similarly engages the bar 12.

Door G, however, is located further out from the shaft, than is door 7, and hence the horizontal part 21 of its bracket is somewhat longer `than the corresponding part 21 of bracket 13, as shown in Figs. 1 and G.

In order to permit door 7 to pass door G, when they are-in `their opening position, that portion lof part 2-1of bracket 13, which is in alinement with door 6, is depressed below the lower end of said door 7, to form a groove 22, Fig. 6, whereby such passing and their overlapping is permitted, as shown in Fig. 3.

In the structure illustrated by Fig. 3, I haveshown my invention as applied to a closure consisting of but two doors alined with each other and of course sliding in opposite directions when actuated to open.

In this form, t-he bottom of each door,

Aas before, is provided with a bracket 23 similar to those above described, and since the doors Aare alined, these bracketsv may be -made of a 'form identical with each other, and lalso may, as shown, `be made coextensive in length with their respective doors, as shown.

The lower ends of these brackets 23 are of a crosssection similar to 4that of the bracketsshown in Figs. 1 and 6, and similar- 'ly engage the bar 12, all as will be readily understood from the foregoing vdescription `of the tiret-described 1form.

The lower part of the recess 9 may be closed by means of a plate 2l suitably secured .to the tace of the walls 10, as shown in Fig. G, leaving the upper portion open and lcomn'iuuicating with the shaft.

As shown also, the main or body portion of `each bracket is made from an uppersec- 4tion 25 and a lower section 26 united at the horizontal portion :thereof by rivets 27. rIshis `feature makes it possible to `always kadjust the parts to fit a given door-way which may by yreason of defects :of workmanship vor erection `vary in form or location from tion 25 by shand. vThe proper vplace for the `rivet hole in `section `26 may be marked through the rivet hole 29 in section 25. The lower section is Vthen removed and the required rivety fhole drilled. Said vsection is then again placed in position engaging bar sliding-door suspended in such door-way and providedV with a member extending into the elevator shaft; and means mounted below'the plane of the door sill engaging said member and adapted to prevent movement thereof in a direction transverse with respect to the direction of sliding of said door.

2. In a sliding-door structure, the combination of an elevator-shaft door-way; a sliding-door suspended in the latter and provided 'at its bottom with a iixed bracket extending' toward and then down into the elevator shaft; and means 'fixed to the adjacent shaft wall for slidably engaging the lower end portion of such bracket.

8. In a slidingdoor structure, the combination of an elevator-shaft door-way; a sliding-door suspended in such door-way, one shaft-wall being provided with a recess (,fonmiunicating with the shaft beneath the lower plane of said door-way; a member secured to the said door and extending into said shaft `and recess; and means in the ylatter for engaging said member and adapt- -ed to prevent movement of the latter in a direction transverse with respect to the direction of sliding of said door.

4. In a sliding-door structure, the combination of an elevator-shaft door-way; a `sliding-door suspended in said door-way; the shaftwall beneath the latter being provided with la recess communieating with the elevator shaft; a bracket secured to the lower part of said door, extending into the shaft and into said recess; and a bar secured in said recess and parallel with the direction of door-movementg said bracket slidably engaging said bar.

5. In a sliding-door structure, the coinbination of an elexf'ator-shaft door-way; a sliding-door suspended in said door-way;

`one shaft- *all being provided with a horizontal recess communicating` with the shaft and located beneath the door-sill; a bracket secured to the lower part of said door, extending into the shaft yand into said recess; and a horizontal bar fixed in :the latter; said bracket slidably engaging said bar.

6. In a sliding-door structure, the com bination of.an:elevator-shaft door-way; two

sliding-doors suspended in the latter and oli'- set fromleach other rin a direction transverse with respect tothe direction of their sliding movement; each of said doors being provided atthe bottom with a bracket extend* ing` into said shaft; fixed means for slidably eugagingthe lower `ends `of said brackets; the outeruiost of said doors being 'termed with a depressed portion in alinement With and below the lower end of the other door, whereby the latter may pass suoli outermost door.

7. The Combination with a sliding door; of a bracket secured thereto and consisting of a main member and means forming the end portion of said main member adapted to slidably engage a suitable guide; said main member consisting of :i section directly 10 secured to the door, extending outwardly therefrom, and a separate section secured thereto and having' its outer portion extending transversely of said first-named section.

Signed by me this thirteenth day of Febl5 ruary, 1925.

JOSEPH SCHULTZ. 

